Minimizing surface area of cylinder

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1. A shop can sell 30 radios at $20 each, per week. For every $1 increase in the price there will be a loss of one sale per week. How much should the shop charge in order to make the maximum profit If the cost to make each radio is $10

2. A closed can (top and bottom), in the shape of a cylinder, is to hold 2000pi cm^3 of soup. Find the dimensions of the can of the least surface area.

Reference no: EM13134976

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